Initial revision.

[flightgear.git] / Weather / weather.h

diff --git a/Weather/weather.h b/Weather/weather.h
index d92b909ab7d0ef1bc554f5d140a9113fa0324571..edc4d14162618c6d7cb1a0199ce4fe1e0b0d3aed 100644 (file)
--- a/Weather/weather.h
+++ b/Weather/weather.h
@@ -24,24 +24,81 @@
  **************************************************************************/
 
 
-#ifndef WEATHER_H
-#define WEATHER_H
+#ifndef _WEATHER_H
+#define _WEATHER_H
+
+
+#ifdef __cplusplus                                                          
+extern "C" {                            
+#endif                                   
+
+
+/* holds the current weather values */
+struct fgWEATHER {
+    float visibility;
+    float fog_density;
+};
+
+extern struct fgWEATHER current_weather;
 
 
 /* Initialize the weather modeling subsystem */
-void fgWeatherInit(void);
+void fgWeatherInit( void );
+
 
 /* Update the weather parameters for the current position */
-void fgWeatherUpdate(double lon, double lat, double alt);
+void fgWeatherUpdate( void );
+
+
+/* Get the current visibility */
+float fgWeatherGetVisibility( void );
+
+
+/* Set the visibility and update fog parameters */
+void fgWeatherSetVisibility( float visibility );
 
 
-#endif /* WEATHER_H */
+#ifdef __cplusplus
+}
+#endif
+
+
+#endif /* _WEATHER_H */
 
 
 /* $Log$
-/* Revision 1.2  1997/07/23 21:52:30  curt
-/* Put comments around the text after an #endif for increased portability.
+/* Revision 1.10  1998/06/12 01:01:00  curt
+/* Build only static libraries.
+/* Declare memmove/memset for Sloaris.
+/* Added support for exponetial fog, which solves for the proper density to
+/* achieve the desired visibility range.
 /*
+ * Revision 1.9  1998/04/21 17:02:46  curt
+ * Prepairing for C++ integration.
+ *
+ * Revision 1.8  1998/01/22 02:59:44  curt
+ * Changed #ifdef FILE_H to #ifdef _FILE_H
+ *
+ * Revision 1.7  1998/01/19 18:40:41  curt
+ * Tons of little changes to clean up the code and to remove fatal errors
+ * when building with the c++ compiler.
+ *
+ * Revision 1.6  1997/12/30 22:22:47  curt
+ * Further integration of event manager.
+ *
+ * Revision 1.5  1997/12/10 22:37:56  curt
+ * Prepended "fg" on the name of all global structures that didn't have it yet.
+ * i.e. "struct WEATHER {}" became "struct fgWEATHER {}"
+ *
+ * Revision 1.4  1997/08/27 03:30:39  curt
+ * Changed naming scheme of basic shared structures.
+ *
+ * Revision 1.3  1997/08/22 21:34:43  curt
+ * Doing a bit of reorganizing and house cleaning.
+ *
+ * Revision 1.2  1997/07/23 21:52:30  curt
+ * Put comments around the text after an #endif for increased portability.
+ *
  * Revision 1.1  1997/07/19 23:03:58  curt
  * Initial revision.
  *